电机与拖动基础复习资料(主).doc

电机与拖动基础复习资料（主）

De motor de motor 1. Fill in the blanks: fill in the blanks

The stationary part of the de motor is called, its main function is made up of, and, etc・ The rotational part is called, its function is the sum, the sum, and so on. In the case of two, single and single wave winding, the logarithmic is p, and the parallel branches are respectively. 3, de motor armature winding and two basic modes of connection, usually with large current and low voltage de motor, the armature winding winding should be adopted・ 4, the de motor armature reaction is defined as, when the brush in the neutral 1 ine geometry, the armature reaction of nature, its and as a result, the motor, the physical neutral wire armature rotation direction deviation. The induction electromotive force of the armature winding is called the armature electromotive force・The armature electromotive force is the induction electromotive force, which is the induction electromotive force・ The electromagnetic torque of a de motor is generated by and combined. De power generation, de motor electromagnetic torque and armature rotation direction. The direction of the magnetic torque and the armature rotation direction Transfer from one branch to another branch, 7, a component in the de motor armature winding is called after a change in the direction of the process・There are two ways to improve the commutation method・The excitation method of de motor has, and.,,,・ 9, shunt de generator self-excited pressure condition is 10 refers to the operating characteristics of motor, de motor under the condition of,,,,,, and the relationship between. Next, the motor is used to determine the state of the de motor when it is in the state of the motor ・ The steering of a de motor is made up of and

determ in ed, and there are two ways of changing the turn.

Jane: reaction when the brush is in the geometric neutral line? What kinds of excitation methods are available for the de generator? Try drawing instructions ・ How do you determine the polarity of the

commutator pole, and why is it connected to the armature winding? What is the self-excitation of the excited generator? What are the conditions for self-excitation?

Power drag of de motor for direct current motor

Fill in the blanks: fill in the blanks:

1, the mechanical characteristics of the de motor, refers to the motor, as under the condition of constant value, namely the stable operation of the motor, the motor and the relationship between, can be expressed as. The inherent mechanical properties of the direct current motor are the relation of under conditions. To limit the starting current, he usually has two kinds of starting methods for the de motor. If the brake resistance is not in series, the armature current of the reverse brake the pitch, the winding stack, second pitch, synthetic pitch, wave

winding armature reaction, Polar distance, reversing pitch, the working characteristic of de motor, de motor commutator, the reversible de motor principle 2.

Briefly working principle of de motor, de generator? winding, single wave winding characteristics armature reaction? What is the characteristic describes the Single stack

4. What i s

of the armature